Dyfyniad APA

Nie, N. H. (1975). SPSS: Statistical package for the social sciences (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Nie, Norman H. SPSS: Statistical Package for the Social Sciences. 2nd ed. New York: McGraw-Hill, 1975.

Dyfyniad MLA

Nie, Norman H. SPSS: Statistical Package for the Social Sciences. 2nd ed. McGraw-Hill, 1975.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.